CN115298642A

CN115298642A - Pressing type electronic pen

Info

Publication number: CN115298642A
Application number: CN202180021384.3A
Authority: CN
Inventors: 渡边大介; 神山良二; 伊藤雅充
Original assignee: Wacom Co Ltd
Current assignee: Wacom Co Ltd
Priority date: 2020-03-31
Filing date: 2021-03-25
Publication date: 2022-11-04
Also published as: WO2021200521A1; US12001618B2; JPWO2021200521A1; US20220413639A1

Abstract

The invention provides a push-type electronic pen capable of solving the problem in the case where a position indicating section is provided on the pen tip side of a pen case and the rear end side opposite to the pen tip side. The disclosed device is provided with: a first position indicator disposed on an opening side of the cylindrical housing on the pen-tip side; a second position indicator disposed on the rear end side of the housing; and a knock cam mechanism including a knock section having a portion protruding outward from an opening at a rear end portion side of the housing, wherein a tip end portion of the first position indicator is caused to assume a state of protruding from the opening at the pen tip side and a state of accommodating the first position indicator in the housing by a knock operation of the knock section. The second position indicating section is housed in the knock cam mechanism section in a state where the tip end portion side is housed in the knock section. The device is provided with a holding mechanism part which restores the pressing part to a state of protruding from the opening of the rear end side of the housing to the outside to hold the pressing part when the front end part of the first position indication part is in a state of protruding from the opening of the housing.

Description

Pressing type electronic pen

Technical Field

The present invention relates to a knock-type electronic pen suitably applied to, for example, an electronic pen with an electronic eraser function.

Background

In recent years, there is a strong demand for miniaturization of portable electronic devices, in accordance with the preference for miniaturization. Further, the electronic pen is used together with a position detection sensor mounted on such a small electronic device, and a slimmer electronic pen is required.

Further, recently, electronic pens have been regarded as extensions of stationery, and it is also desired to modularize components of a position indicating portion provided inside a pen case and handle the same as a replacement core (refill or cartridge) of a ballpoint pen. Hereinafter, in the present specification, a component of the position indicating section in the pen case of the electronic pen is modularized and integrated, and a component configured to be replaceable like a refill of a ballpoint pen is referred to as an electronic pen cartridge.

The applicant has already proposed a knock-type electronic pen configured to be able to handle an electronic pen case for an electronic pen in the same manner as a refill for a ballpoint pen, and capable of using a knock-type ballpoint pen case of a stationery as a pen case of the electronic pen as it is (for example, see patent document 1 (japanese patent No. 59038)).

Documents of the prior art

Patent literature

Patent document 1: japanese patent No. 59038

Disclosure of Invention

Problems to be solved by the invention

However, an electronic pen is also provided which includes an electronic eraser function section having the same configuration as the position indication section for writing input, in which information is written and input on the position detection sensor by the position indication section of the electronic pen. In this case, the position indicator for writing input is disposed on one end side in the axial direction of the cylindrical pen case, and the position indicator constituting the electronic eraser function portion is disposed on the other end side in the axial direction of the cylindrical pen case.

Therefore, in the case of the knock-type electronic pen, it is conceivable to provide a position indicating section constituting an electronic eraser function section on the knock section side.

However, when the position indicator for writing input is projected from one opening of the housing by pressing the extra knock portion of the knock cam mechanism, the position of the knock portion in the axial direction is not locked and is freely moved in the axial direction. Therefore, when the push portion is provided with the position indicating portion constituting the electronic eraser functional portion, the position of the tip end portion side of the position indicating portion constituting the electronic eraser functional portion is moved in the axial direction during use, and the operation cannot be stably performed, which is inconvenient.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a knock-type electronic pen that can solve the problem of providing a position indicator not only on the pen tip side of a pen case but also on the rear end side opposite to the pen tip side.

Means for solving the problems

In order to solve the above problem, a knock-type electronic pen is provided, including:

a cylindrical housing;

a first position indicating section disposed in a state in which an opening side on one end side in an axial direction of the cylindrical housing is a front end section side for position indication;

a second position indicating portion disposed in a state where an opening side of the other end side in the axial direction of the cylindrical housing is a front end portion side for position indication; and

a knock cam mechanism portion including a knock portion having a portion protruding outward from an opening on the other end side in the axial direction of the cylindrical case, wherein at least a core of the tip portion of the first position indicating portion is caused to assume a state of protruding from the opening on the one end side of the cylindrical case and a state of accommodating the first position indicating portion including the tip portion inside the case by a knock operation of the knock portion,

the second position indicating section is housed in the knock cam mechanism section in a state where at least the core side of the tip end section is housed in a portion of the knock section which protrudes outward from the opening on the other end side of the housing,

the knock-type electronic pen includes a holding mechanism portion that, when at least a core of the first position indicator protrudes from the opening on the one end side of the cylindrical housing by a knock operation of the knock section, restores the knock section, which is pushed into the housing by the knock operation, to a state where the knock section protrudes to the outside from the opening on the other end side in the axial direction of the cylindrical housing, and holds the knock section.

In the knock-type electronic pen having the above-described configuration, the first position indicating section is disposed in a state in which the opening side of the one end side in the axial direction of the cylindrical housing is the position indicating tip end side, and at least the core of the tip end of the first position indicating section is caused to protrude from the opening of the one end side of the cylindrical housing and the first position indicating section is also accommodated in the housing including the tip end in response to a knock operation of the knock section of the knock cam mechanism section.

The second position indicating section is housed in the knock cam mechanism section in a state where at least the core side of the distal end portion thereof is housed in a portion of the knock section protruding to the outside from the opening on the other end side of the housing, and is thereby disposed in a state where the opening side on the other end side in the axial direction of the cylindrical housing is on the distal end portion side for position indication.

The knock-type electronic pen with the above-described configuration includes a holding mechanism for holding the knock section by returning the knock section pushed into the housing by the knock operation to a state of protruding to the outside from the opening on the other end side in the axial direction of the cylindrical housing, when at least the core of the first position indicator projects from the opening on the one end side of the cylindrical housing by the knock operation of the knock section.

According to the knock-type electronic pen having the above configuration, the knock cam mechanism portion holds the knock portion of the knock cam mechanism portion in a state of protruding the tip portion of the first position indicator portion from the opening on one end side in the axial direction of the housing, and the holding mechanism portion also holds the knock portion of the knock cam mechanism portion in a state of protruding from the opening on the other end side in the axial direction of the housing. Therefore, for example, in the case where the electronic eraser function section is provided, when the case is reversed to receive the writing input information input from the first position indicating section having the tip end portion protruding from the one end side in the axial direction of the case and the tip end portion of the second position indicator is operated on the position detecting sensor, the position in the axial direction of the tip end portion of the second position indicator is held by the holding mechanism section, and therefore, there is an effect that the usability becomes excellent.

Drawings

Fig. 1 is a diagram illustrating an example of the structure of an embodiment of a knock-type electronic pen according to the present invention.

Fig. 2 is a diagram for explaining a configuration example of a position indicating section used in an embodiment of the knock-type electronic pen of the present invention.

Fig. 3 is a diagram for explaining a configuration example of a holding mechanism part of the knock type electronic pen according to the embodiment of the present invention.

Fig. 4 is a diagram for explaining a configuration example of a part of a holding mechanism section in the embodiment of the knock-type electronic pen according to the present invention.

Fig. 5 is a diagram for explaining a configuration example of a part of a holding mechanism section in the embodiment of the knock-type electronic pen according to the present invention.

Fig. 6 is a diagram for explaining a configuration example of a part of a holding mechanism section in the embodiment of the knock-type electronic pen according to the present invention.

Fig. 7 is a diagram for explaining a configuration example of a position detection device used with an embodiment of the knock-type electronic pen of the present invention.

Detailed Description

Hereinafter, embodiments of the knock-type electronic pen according to the present invention will be described with reference to the accompanying drawings. The electronic pen according to the present embodiment includes a structure in which an electromagnetic induction type electronic pen case having a cartridge-type structure is detachably housed in a cylindrical case (referred to as a pen case) of the electronic pen.

Fig. 1 is a diagram showing a configuration example of an embodiment of a knock type electronic pen according to the present invention. In the example of fig. 1, the pen case 2 of the electronic pen 1 is made of a transparent synthetic resin, and is shown as being transparent to the inside thereof.

The knock-type electronic pen 1 according to the present embodiment is configured such that an electronic pen case 3 for writing input, which is an example of a first position indicating portion, and an electronic pen case 4, which is an example of a second position indicating portion, are accommodated in a hollow portion 2a of a cylindrical pen case 2, which is a cylindrical pen case in this example.

Fig. 2 is a diagram showing a configuration example of the electronic pen box 3 for writing input. In the present embodiment, the electronic pen box 4 constituting the electronic eraser function portion has substantially the same configuration as the electronic pen box 3 for writing input, and here, a configuration example of the electronic pen box 3 for writing input will be described, and a description of a configuration example of the electronic pen box 4 constituting the electronic eraser function portion will be omitted.

Fig. 2 (a) is a diagram showing the entire external appearance of the electronic pen box 3 for writing input, and fig. 2 (B) is an enlarged cross-sectional view of the pen tip side of the electronic pen box 3 for writing input.

As shown in fig. 2 (a) and (B), the electronic pen case 3 according to the present embodiment includes a core body 30, a magnetic core around which a coil 31 is wound, a ferrite core 32 in this example, a holder 33 that holds a pen pressure detection unit 70 and holds a circuit board 80 (see fig. 2 (B)), a case housing 34 that has a function of housing and protecting the pen pressure detection unit 70 and the circuit board 80 held by the holder 33, and a rear end member 35 that is coupled to and provided on the side of the case housing 34 opposite to the core body 30 side.

In this example, the core 30 is a thin rod-shaped member made of a relatively hard and elastic resin material, for example, POM (Polyoxymethylene). In this example, as shown in fig. 2 (B), the core body 30 is inserted into a core tube member 32a fitted and fixed to a through hole 32a of the ferrite core 32, and a side 30B opposite to the pen tip side 30a transmits the pen pressure to a pen pressure detecting portion 70 provided in the holder portion 33 via a pressure transmitting member 37. The coil spring 38 is an elastic member for returning the core body 30 to its original position when the pen pressure applied to the core body 30 is removed.

In the present embodiment, the pen pressure detecting unit 70 is configured by a variable capacitor formed by a semiconductor chip formed by a MEMS (Micro Electro Mechanical Systems) element (see, for example, patent document (jp 2013-161307 a)). The pressure detecting unit 70 is not limited to the one formed of the semiconductor chip as in this example, and may be a variable inductance instead of the variable capacitor.

The holder 33 is made of, for example, a resin material, and as shown in fig. 2B, includes a cylindrical portion 33a that holds the pen pressure detection unit 70 and fits into the ferrite core 32, and a mounting table portion 33B on which a circuit board 80 on which a capacitor (not shown) that forms a resonance circuit with the coil 31 is mounted.

The cartridge case 34 is formed of a hard material, in this example, a metal, and is a tube-shaped member, and constitutes a circuit portion protecting member for protecting the circuit components of the pen pressure detecting unit 70 and the circuit board 80.

The rear end member 35 (see fig. 2 a) provided in conjunction with the opposite side of the cartridge case 34 from the core 30 side is provided with a coil spring 36, and this coil spring 36 functions as a damper (shock absorbing member) for absorbing an impact load (impact pressure) when the impact load is applied to the core 30 side of the electronic pen cartridge 3 to protect the electronic pen cartridge 3, and also functions as a fitting portion with respect to a fitting recess of a rotor 51 of the knock cam mechanism 5 described later in the present embodiment. The coil spring 36 for a shock absorber is configured such that the pressure applied to the core 30 is not elastically displaced within the range of detection of the pen pressure by the pen pressure detecting unit 70, and when an impact load (impact pressure) larger than the range of detection of the pen pressure is applied to the core 30, the coil spring is elastically displaced to absorb the impact. In addition, the spring force of the coil spring 36 is larger than that of the coil spring 53.

Returning to the description of the electronic pen 1 of fig. 1. In the present embodiment, the electronic pen box for writing input (hereinafter referred to as writing input box) 3 is disposed in the hollow portion 2a of the pen case 2 such that the pen point side including the core 30 is the opening 2b side of one end side (pen point side) in the axial center direction of the pen case 2. The writing input cartridge 3 is configured such that the pen tip side including the core 30 of the writing input cartridge 3 is moved in and out from the opening 2b side of the pen case 2 by the knock cam mechanism 5.

The knock cam mechanism 5 includes a rotary member 51, a rotary member driving portion (knock rod) 52 for rotationally driving the rotary member 51 and moving the rotary member in the axial direction, and a coil spring 53 as an example of an elastic member for constantly biasing the rotary member 51 toward the opening 2c on the other end side in the axial direction of the pen case 2. The rotor driving portion 52 includes a push portion 52KN protruding outward from the opening 2c on the other end side in the axial direction of the pen case 2.

As described above, the writing input cartridge 3 is attached to the electronic pen 1 by fitting the rear end member 35 provided to be coupled to the cartridge case 34 on the side opposite to the core 30 into the fitting recess (not shown) of the rotary member 51. As shown in fig. 1 (a) and (C) and fig. 2 (a), a coil spring 36 that functions as a damper for protecting the writing input cartridge 3 is provided between the rear end of the cartridge case 34 and the rotary member 51.

An electronic pen box (hereinafter referred to as an eraser function box) 4 constituting an electronic eraser function unit is provided in the rotor driving unit 52 of the knock cam mechanism unit 5 in a state where the pen tip side including the core body 40 is on the opening 2c side of the other end side (rear end side) in the axial direction of the pen case 2. In the present embodiment, as shown in fig. 1, the eraser function cartridge 4 is housed in the rotor driving portion 52 such that the tip portion thereof is positioned in the knock portion 52KN protruding from the opening 2c on the rear end side of the pen case 2.

The eraser function cartridge 4 includes a core 40, a coil 41, a ferrite core 42, a holder member 43, a cartridge case 44, a rear end member 45, and a coil spring 46, which are designated by reference numerals of 40 th order as members corresponding to the components of the writing input cartridge 3. The rubber function box 4 also includes a pen pressure detecting unit 70 and a circuit board 80, similarly to the writing input box 3.

In the present embodiment, the holding mechanism portion 6 for holding the knock portion 52KN of the rotor driving portion 52 of the knock cam mechanism portion 5 in a state of protruding outward from the opening 2c on the rear end side of the pen case 2 is provided corresponding to the rotor driving portion 52. In the present embodiment, the holding mechanism 6 is configured as a knock cam mechanism (the knock cam mechanism 52 is referred to as a first knock cam mechanism, and hereinafter, referred to as a second knock cam mechanism) different from the knock cam mechanism 5, and includes a rotary member 61, and a coil spring 62 as an example of a biasing member that constantly biases the rotary member 61 toward the opening 2c on the rear end side of the pen case 2. The rotor driving unit that rotationally drives the rotor 61 and moves it in the axial direction is constituted by a part of the rotor driving unit 52 of the knock cam mechanism 5. The detailed structure of the holding mechanism 6 and the structure of the knock cam mechanism 5 will be described later.

In the present embodiment, as will be described later, the holding mechanism 6 is configured to hold the knock section 52KN of the rotary actuator 52 of the knock cam mechanism 5 in a state of protruding outward from the opening 2c on the rear end side of the pen case 2 when the pressing force at the time of the knock operation on the knock section 52KN is equal to or less than a predetermined value, and to release the held state when the pressing force at the time of the knock operation on the knock section 52KN exceeds the predetermined value, and to start the operation of the knock cam mechanism 5 in accordance with the knock operation on the knock section 52KN.

In this case, in the present embodiment, the predetermined value of the pressing force for the knock operation on the knock section 52KN for releasing the holding by the holding mechanism section 6 is a value larger than the normal pen pressure of the user when the knock section 52KN side of the electronic pen 1 is brought close to or brought into contact with the position detection sensor to perform the erase instruction of the eraser function cartridge 4. That is, the value at which the knock cam mechanism 5 does not start operating when the user brings the knock part 52KN side of the electronic pen 1 close to or into contact with the position detection sensor and instructs the erasure of the eraser function cartridge 4 is selected. As will be described later, in the present embodiment, the predetermined value of the pressing force of the knock operation of the knock part 52KN for releasing the holding of the holding mechanism part 6 is larger than the elastic force of the coil spring 46 that functions as a damper provided at the rear end part 45 of the rubber function case 4.

As described above, in the present embodiment, even when the writing input cartridge 3 is accommodated in the hollow portion 2a of the pen case 2 with the pen tip portion thereof contained therein, or when the pen tip portion of the writing input cartridge 3 is caused to protrude outward from the opening 2b on the pen tip side of the pen case 2, the knock portion 52KN of the rotary member driving portion 52 of the knock cam mechanism portion 5 is held in a state of protruding outward from the opening 2c on the rear end side of the pen case 2, and the held state is maintained as long as a predetermined pressing force against the elastic force of the coil spring 46 functioning as a damper provided on the rear end side of the rubber function cartridge 4 is not applied to the knock portion 52KN.

Accordingly, the push portion 52KN where the pen tip portion of the eraser functional cartridge 4 is located is kept in a state of protruding outward from the opening 2c on the rear end side of the pen case 2 as long as a pressing force is applied not exceeding a predetermined value before or after the push operation, and therefore, the eraser functional cartridge 4 can be used with good convenience.

As described above, in the present embodiment, when the knock operation is performed in which the knock portion 52KN of the knock cam mechanism 5 is pushed down with a pressing force larger than a predetermined value, as will be described later, the holding state of the holding mechanism 6 with respect to the rotary member driving portion 52 is released, and thereby the pen tip portion of the writing input cartridge 3 can alternately assume a state of protruding from the opening 2b on the pen tip side of the pen housing 2 and a state of being accommodated in the hollow portion 2a of the pen housing 2 including the pen tip portion of the writing input cartridge 3.

Fig. 1 (a) shows a state in which the entire writing input cartridge 3 including the pen tip side is housed in the hollow portion 2a of the pen case 2, and fig. 1 (B) is a schematic diagram for explaining an engagement state of the rotary piece 51 and the first cam main body 21 formed on the inner wall surface of the pen case 2 at this time. Fig. 1 (C) is a schematic diagram illustrating a state in which the knock operation as described above is performed on the knock part 52KN from the state of fig. 1 (a), the pen tip side of the electronic pen case 3 is in a state of protruding from the opening 2b of the pen case 2 by the knock cam mechanism 5, and then the pressing force on the knock part 52KN is removed, and fig. 1 (D) is a schematic diagram illustrating an engaged state of the rotary piece 51 and the first cam main body 21 formed inside the pen case 2 at this time.

As shown in fig. 1 (B) and 1 (D), the first cam main body 21 on the inner wall surface of the housing 2 includes a plurality of protrusions 211 formed at predetermined intervals in the circumferential direction. In this case, the circumferential width of the protrusions 211 is equal to the formation interval of the protrusions 211. Adjacent ones of the plurality of projections 211 are disposed with a recess 212 therebetween. Therefore, the first cam main body 21 of the inner wall surface of the housing 2 has a structure in which the plurality of protrusions 211 and the plurality of grooves 212 are alternately formed.

On the other hand, as shown in fig. 1 (B) and 1 (D), the rotary piece 51 of the knock cam mechanism 5 has a plurality of projections 511 formed in the circumferential direction of the outer peripheral surface thereof, which abut against the projections 211 of the first cam main body 21 on the inner wall surface of the pen case 2 and can enter the grooves 212. Further, adjacent protrusions of the plurality of protrusions 211 are provided with a groove 212 therebetween. Therefore, the rotary member 51 has a structure in which a plurality of protrusions 511 and a plurality of grooves 512 are alternately formed.

As shown in fig. 1 (a), in a state where the entire writing input cartridge 3 including the pen tip side is housed in the hollow portion 2a of the pen case 2, as shown in fig. 1 (B), the protrusion 511 of the rotary piece 51 enters the groove 212 of the first cam main body 21 on the inner wall surface of the pen case 2.

However, when the user performs the knock operation of pushing the knock part 52KN with a pressing force of a predetermined value or more from the state of fig. 1 (a), the rotary member driving part 52 moves the rotary member 51 toward the opening 2b of the pen tip side of the pen housing 2 in the axial direction in response to the knock operation. At this time, the protrusion 511 of the rotary piece 51 moves along the groove 212 of the first cam main body 21.

Then, after the projection 511 of the rotary piece 51 is moved to a position where it is separated from the groove 212 of the first cam main body 21 by the rotary piece driving portion 52, when the pressing force of the knock portion 52KN by the user is removed, the rotary piece 51 is biased so as to move toward the opening 2c side of the rear end side of the pen case 2 by the elastic force of the coil spring 53, and the rotary piece 51 is rotated by the engagement between the rotary piece driving portion 52 and the rotary piece 51, and as shown in fig. 1 (D), the projection 511 of the rotary piece comes into a state of abutting against the projection 212 of the first cam main body 21, and is locked in this state by the elastic force of the coil spring 53.

That is, even if the user removes the pressing force to the knock part 52KN, the rotary piece 51 and the first cam body 21 are kept in the state of fig. 1 (D), and the pen tip side of the writing input capsule 3 is in a state of protruding from the opening 2b of the pen tip side of the pen case 2 as shown in fig. 1 (C) by the locked state in which the protrusion 511 of the rotary piece 51 and the protrusion 212 of the first cam body 21 abut against each other.

At this time, as will be described later, the coil spring 62 of the holding mechanism 6 biases the rotor driving portion 52 of the knock cam mechanism 5 toward the opening 2c on the rear end side of the pen case 2 via the rotor 61, and the knock portion 52KN of the rotor driving portion 52 is held in a state of protruding from the opening 2c on the rear end side of the pen case 2 by the operation of the rotor 61 to be described later. Therefore, as shown in fig. 1 (C), at this time, the rotor driving unit 52 and the rotor 51 are spatially separated in the axial direction.

Then, when the user performs the knock operation of pressing the knock part 52KN again from this state by a predetermined value (in this example, a pressing force equal to or larger than the elastic force of the coil spring 46 functioning as a damper provided on the rear end side of the rubber function case 4), as will be described later, the holding of the rotating member driving part 52 by the holding mechanism part 6 is released by the operation of the rotating member 61, and the rotating member driving part 52 is in a state of being movable in the axial direction.

Then, when the rotary element driving portion 52 is moved in the axial direction by the user's pushing operation and the rotary element 51 is displaced toward the opening 2b on the pen tip side of the pen case 2 against the elastic force of the coil spring 53, the rotary element 51 is rotated, the engagement of the projection 511 with the projection 211 of the first cam main body 21 is released, and then, when the user removes the pushing force on the pushing portion 52KN, the projection 511 of the rotary element 51 is positioned to be inserted into the recess 212 of the first cam main body 21, and the rotary element 51 is moved toward the opening 2c on the rear end side of the pen case 2 by the elastic force of the coil spring 53, and returns to the state shown in fig. 1 (a).

At this time, as will be described later, the holding mechanism 6 performs the same operation as that performed when the state of fig. 1 (a) is shifted to the state of fig. 1 (C), and returns to the state where the knock portion 52KN of the rotor driving portion 52 is held protruding from the opening 2C on the rear end portion side of the pen case 2.

Although not shown in fig. 1, similarly to the knock cam mechanism of a known knock-type ballpoint pen, a protrusion that slides while entering into the groove 212 of the cam body 21 of the pen case 2 is provided on the side peripheral surface of the rotation member driving portion 52 on the side of engagement with the rotation member 51, and the rotation member driving portion 52 is configured not to come off from the opening 2c on the rear end side of the pen case 2 by engagement of the protrusion of the rotation member driving portion 52 with the end 212a (see fig. 1 (B) and (D)) on the rear end side of the groove 212 of the cam body 21 on the inner wall surface of the pen case 2.

[ description of the holding mechanism portion 6 ]

Next, a description will be given of a configuration example of the holding mechanism 6 of the knock-type electronic pen 1 according to the present embodiment, with reference to fig. 3 to 6.

Fig. 3 (a) is a sectional view for explaining the configuration of the rotor driving part 52 and the holding mechanism part 6 of the knock cam mechanism part 5 of the knock-type electronic pen 1 according to the present embodiment. Fig. 3 (B) is a cross-sectional view of the pen case 2 taken along the X-X line in fig. 3 (a), and is a diagram for explaining the structure of the second cam main body 22 to be described later.

As shown in fig. 3 (a) and 1 (a) and (C), in the present embodiment, the rotor driving portion 52 of the knock cam mechanism portion 5 is made of resin in the present embodiment, and is made up of a first portion 521 and a second portion 522 joined in the axial direction.

In the present embodiment, the first portion 521 has a cylindrical shape having a concave hole 521a for receiving the rear end side of the eraser functional case 4 except the pen tip side, and the side (the opening 2b side of the pen tip side of the pen case 2) 521b opposite to the side coupled to the second portion 522 of the first portion 521 is configured to abut against the rotary 51 and to have a concave-convex portion for rotationally driving the rotary 51.

In the present embodiment, the second portion 522 has a cylindrical shape, and has an inner diameter slightly larger than the outer diameter of the cylindrical first portion 521, and an outer diameter smaller than the inner diameter of the pen case 2. As shown in fig. 3a and 1a and C, the second portion 522 is a snap portion 52KN protruding from the opening 2C on the rear end side of the pen case 2.

As shown in fig. 3 (a) and fig. 1 (a) and (C), the opening at the tip of the second portion 522 which is the snap portion 52KN is closed by the cover 54. In the present embodiment, the cover member 54 is made of, for example, an elastic rubber which is a physical rubber. Of course, the cover member 54 may be formed of a member (preferably, an elastic member) serving as a pseudo rubber, instead of an elastic rubber serving as a physical rubber.

In the present embodiment, as shown in fig. 3 (a), the

protrusions

521c and 521d protruding in the direction orthogonal to the axial direction are provided at positions spaced apart from each other by an angular interval of 180 degrees on the outer peripheral side surface on the rear end side of the first portion 521. In addition, in the second portion 522,

window portions

522c and 522d into which the

protrusions

521c and 521d of the first portion enter are formed. In this case, the axial length of the

window portions

522c and 522d of the second portion 522 is longer than the axial length of the

projection portions

521c and 521d of the first portion 521.

The first portion 521 is inserted from the rear end side of the second portion 522, and is coupled to the second portion 522 in a state where the

protrusions

521c and 521d enter the

window portions

522c and 522d. In this coupled state, since the axial length of the

window portions

522c and 522d of the second part 522 is longer than the axial length of the

projection portions

521c and 521d of the first part 521, the second part 522 can move in the axial direction relative to the first part 521 by a corresponding amount.

As shown in fig. 3 (a) and fig. 1 (a) and (C), in a state where the first part 521 and the second part 522 are coupled, the concave hole 521a of the first part 521 and the hollow portion 522a of the cylindrical second part form a communication space that communicates with each other, and the communication space forms a hollow portion of the rotor driving portion 52. As shown in fig. 3 (a) and fig. 1 (a) and (C), the rubber function case 4 is housed in the hollow portion of the communicating space of the rotor driving portion 52 so that the pen tip side of the rubber function case 4 including the core 40 is positioned in the hollow portion of the knock portion 52KN.

In this case, the coil spring 46 functioning as a damper is provided between the bottom of the concave hole 521a of the first portion 521 of the rotary member driving portion 52 and the case 44 of the rubber function case 4 at the rear end portion 45 of the rubber function case 4, and the tip end side of the core 40 of the rubber function case 4 is constantly urged to contact the lid portion 54 of the pushing portion 52KN by the elastic force of the coil spring 46.

In the present embodiment, the holding mechanism 6 is configured to hold the knock part 52KN in a state of protruding outward from the opening 2c on the rear end side of the pen case 2 by configuring the second knock cam mechanism, and the held state is maintained as long as a predetermined pressing force against the elastic force of the coil spring 46 functioning as the damper provided on the rear end side of the rubber function case 4 is not applied to the knock part 52KN.

In this case, the second knock cam mechanism portion is constituted by the rotor 61, the return coil spring 62, the second cam main body 22 formed on the inner wall surface of the pen case 2, the second portion 522 of the rotor driving portion 52 constituting the rotor driving portion for moving the rotor 61 in the axial direction and rotationally driving it, and the coil spring 46.

In the present embodiment, as shown in fig. 3a and 1a and C, the end edge of the second portion 522 of the rotary member driving portion 52 on the side of connection with the first portion 521 is configured to abut against the rotary member 61 of the holding mechanism portion 6, and the rotary member 61 is configured to move in the axial direction against the spring force of the coil spring 62 and rotate.

As shown in fig. 3 (a) and 1 (a) and (C), the second cam main body 22 is formed on the inner wall surface of the pen case 2 at a position facing the side circumferential surface of the first portion 521 of the rotor driving portion 52. The second cam main body 22 is configured to be engaged with the rotary piece 61 to lock the rotary piece 61 in the state shown in fig. 3 (a) and fig. 1 (a) and (C), and to be capable of moving the rotary piece 61 in the axial direction together with the rotary piece driving portion 52.

As shown in the cross-sectional view of fig. 3 (B), the second cam main body 22 is configured such that a plurality of, in this example, 3 protrusions 221 protruding from the inner peripheral wall surface of the radius r1 of the pen case 2 toward the inside of the hollow portion are formed at equiangular intervals in the circumferential direction, and 3 recesses 222 are formed between the adjacent protrusions 221 of the 3 protrusions 221. In this example, the angular range width W1 of the concave groove 222 is configured to be slightly larger than 60 degrees, for example, 63 degrees.

Further, as shown in fig. 3 (B), since the distal end portions of the 3 protrusions 221 of the second cam main body 22 are formed so as to be included on the circumference of a radius r2 (< r 1) slightly larger than the radius of the outer periphery of the first member 521 of the rotor driving portion 52, the first portion 521 of the rotor driving portion 52 can move in the axial center direction without coming into contact with the distal end portions of the 3 protrusions 221 of the second cam main body 22.

Next, the structure of the rotary member 61 of the second knock cam mechanism according to the present embodiment will be described with reference to fig. 4 to 6. The rotary member 61 of the second knock cam mechanism according to the present embodiment is configured as shown in fig. 6 by coupling a ring member 611 as shown in fig. 4 and a leg member 612 as shown in fig. 5.

Fig. 4 (a) is a view of the annular member 611 viewed from the side opposite to the engagement side with the end 522b of the second portion 522 of the rotor driving unit 52 in the axial direction. Fig. 4 (B) is a side view of the annular member 611 viewed from a direction orthogonal to the axial direction. As shown in fig. 4 (a), the radius of the inner peripheral wall surface of the annular member 611 is a radius r2 slightly larger than the radius of the outer periphery of the first member 521 of the rotor driving unit 52. As shown in fig. 4 (a), the radius of the outer peripheral side surface of the annular member 611 is a radius r3 slightly smaller than the radius r1 of the inner peripheral wall surface of the pen case 2.

As shown in fig. 4 (a), 3 recessed

grooves

611b, 611c, and 611d are formed in the inner circumferential wall surface of the annular member 611, and the 3 recessed

grooves

611b, 611c, and 611d are formed in the axial direction at a predetermined angular range width W2, in this example, W2=60 degrees, which is narrower than the angular range width W1 of the recessed groove 222 of the second cam main body 22. As shown in fig. 4 a, the wall surfaces (bottom surfaces of the grooves) of the 3

grooves

611b, 611c, 611d are formed so as to be included on the circumference of a radius r4 (r 2 < r4 < r 3).

In this example, as shown in fig. 4 (B), a concave-convex portion 611a for rotating the rotor 61 is formed on the engagement side of the annular member 611 with the end portion 522B of the second portion 522 of the rotor driving unit 52. Further, the concave-convex portion 611a is formed at a thickness portion ranging from the radius r4 to the radius r3.

As shown in fig. 5, the leg member 612 is configured such that the groove is formed in a slit shape so as to form 3

legs

612b, 612c, and 612d having an angular range width W2 in a cylindrical body having an outer peripheral side surface with a radius r4 and an inner peripheral wall surface with a radius r2. In other words, the annular plate portion 612a is formed to stand from one end surface thereof in the axial direction by 3

legs

612b, 612c, and 612 d.

Then, 3

legs

612b, 612c, and 612d of the leg member 612 shown in fig. 5 are inserted into 3

grooves

611b, 611c, and 611d of the ring member 611 from the concave-convex portion 611a side of the ring member 611 shown in fig. 4. Then, the rotary 61 shown in fig. 6 (a) and (B) is formed. Fig. 6 (a) is a view of the rotary member 61 viewed from the opposite side to the concave and convex portion 611a side of the annular member 611 in the axial direction. Fig. 6 (B) is a side view of the rotor 61 as viewed from a direction orthogonal to the axial direction.

As shown in fig. 6 (a) and (B), the rotary member 61 has a shape in which 3

legs

612B, 612c, and 612d of the leg member 612 protrude on the opposite side of the concave-convex portion 611a of the annular member 611. In this case, as shown in fig. 6 (B), the outer peripheral edge of the end surface of the annular member 611 on the side opposite to the concave-convex portion 611a is an extension portion 611e that extends in a direction orthogonal to the axial direction from the 3

leg portions

612B, 612c, and 612d of the leg member 612.

As shown in fig. 3 (a) and 1 (a) and (C), the rotor 61 is attached to the outer peripheral side surface of the first portion 521 of the rotor driving unit 52 such that the first portion 521 of the rotor driving unit 52 is inserted into the hollow portion of the annular member 611. In this case, the rotor 61 is in a state of being capable of sliding in the axial direction with respect to the first portion 521 of the rotor driving unit 52.

Further, as shown in fig. 3 (a), the coil spring 62 is provided between the 3 protrusions 221 of the second cam main body 22 of the inner wall surface of the pen case 2 and the protruding portion 611e of the annular member 611 of the rotary piece 61. Thus, the rotary member 61 is always urged toward the opening 2c on the rear end side of the pen case 2 by the elastic force of the coil spring 62, and is held in a state where the concave-convex portion 611a side of the rotary member 61 is always engaged with the end edge of the second portion 522 of the rotary member driving portion 52.

Next, the operation of the holding mechanism 6 configured as described above will be described. In a state where the entire writing input cartridge 3 shown in fig. 1 (a) including the nib portion is housed in the hollow portion of the pen case 2, the distal ends of the 3

legs

62B, 612c, and 612d of the rotator 61 abut against the distal ends (on the front end side with respect to the position shown by the broken line in fig. 3 (B)) of the 3 protrusions 221 of the second cam main body 22 on the inner wall surface of the pen case 2. Thus, the rotary member driving part 52 of the knock cam mechanism part 5 holds the knock part 52KN in a state of protruding from the opening 2c on the rear end side of the pen case 2, and the held state is maintained as long as a predetermined pressing force against the elastic force of the coil spring 46 functioning as a damper provided on the rear end side of the eraser function case 4 is not applied to the knock part 52KN.

In this state, when the user pushes the knock part 52KN with a pressing force against the elastic force of the coil spring 46 functioning as a damper, the second part 522 of the rotor driving part 52 moves in the axial center direction with respect to the first part 512.

By the axial movement of the second part 522 of the rotor driving section 52, the rotor 61 of the holding mechanism section 6 is rotated, and the holding of the rotor driving section 52 by the holding mechanism section 6 is released in a state where the 3

legs

62b, 612c, and 612d of the rotor 61 enter the 3 recesses 222 of the second cam main body 22 of the inner wall surface of the pen case 2. Therefore, the first portion 521 and the second portion 522 of the rotary actuator 52 are moved in the axial direction as a unit by the pressing force of the user against the knock member 52KN, the knock cam mechanism 5 starts to operate, and the pen tip portion of the writing input cartridge 3 is in a state of protruding from the pen tip side opening 2b of the pen case 2.

In this state, when the user stops the knock operation of the knock part 52KN and removes the pressing force, the rotary piece 51 of the knock cam mechanism 5 and the first cam main body 21 of the inner wall surface of the pen case 2 are engaged with each other in the state of fig. 1 (D) as described above, and thereby the pen point part of the writing input cartridge 3 is held in a state of protruding from the opening 2b of the pen point side of the pen case 2.

At this time, the second portion 522 of the rotor driving portion 52 is elastically biased toward the opening 2c on the rear end side of the pen case 2 by the coil spring 62 of the holding mechanism portion 6, and the rotor driving portion 52 moves to a position where the protrusion (not shown) provided on the side surface portion of the front end portion of the first portion 521 engages with the end portion 212a (see fig. 1B and D) of the concave groove 212 of the first cam main body 21, as described above. Then, when the 3

legs

612B, 612c, and 612d of the rotor 61 of the holding mechanism portion 6 are out of the recessed groove 222 of the second cam main body 22 on the inner wall surface of the pen case 2 by the movement of the rotor driving portion 52 toward the opening 2c side on the rear end side of the pen case 2 by the coil spring 62, the rotor 61 of the holding mechanism portion 6 is rotated, and the tip portions of the 3

legs

612B, 612c, and 612d of the rotor 61 are returned to a state of abutting against the tip portions of the 3 protrusions 221 of the second cam main body 22 on the inner wall surface of the pen case 2 (the tip side is closer to the position indicated by the broken line in fig. 3B).

Therefore, as shown in fig. 1 (C), even in a state where the nib portion of the writing input cartridge 3 protrudes from the opening 2b on the nib side of the pen case 2, the rotor driving portion 52 is held in a state where the knock portion 52KN protrudes from the opening 2C on the rear end side of the pen case 2, and the held state is a state where a predetermined pressing force mainly against the elastic force of the coil spring 46 functioning as a damper for protecting the eraser function cartridge 4 is not applied to the knock portion 52KN and is held.

When the user presses the knock section 52KN again with a pressing force against the elastic force of the coil spring 46 functioning as a damper from this state, the second part 522 of the rotary element driving section 52 moves in the axial direction with respect to the first part 512, and the rotary element 61 rotates in the same manner as described above, so that the 3

leg portions

62b, 612c, and 612d of the rotary element 61 enter the 3 recesses 222 of the second cam main body 22 on the inner wall surface of the pen case 2, and the first part 521 and the second part 522 of the rotary element driving section 52 are integrated by the pressing force of the user against the knock section 52KN, and move in the axial direction, and the operation of the knock cam mechanism section 5 described above is started.

That is, the rotary member 51 in the state of fig. 1 (D) is disengaged from the projection 211 of the first cam main body 21 on the inner wall surface of the pen case 2, and the return coil spring 53 returns to the state shown in fig. 1 (a) in which the writing input cartridge 3 is accommodated in the hollow portion 2a of the pen case 2 including the nib.

At this time, similarly to the case where the writing input cartridge 3 is in the state of protruding from the opening 2B on the pen tip side, the second portion 522 of the rotor driving portion 52 is elastically biased toward the opening 2c on the rear end side of the pen case 2 by the coil spring 62 of the holding mechanism portion 6, and the rotor driving portion 52 moves to the position where the protrusion (not shown) provided on the side surface portion of the front end portion of the first portion 521 engages with the end portion 212a (see fig. 1B and D) of the concave groove 212 of the first cam main body 21 as described above. Then, when the 3

legs

612B, 612c, and 612d of the rotor 61 of the holding mechanism portion 6 are out of the recessed groove 222 of the second cam main body 22 on the inner wall surface of the pen case 2 by the movement of the rotor driving portion 52 toward the opening 2c on the rear end side of the pen case 2 by the coil spring 62, the rotor 61 of the holding mechanism portion 6 rotates, and the tip portions of the 3

legs

612B, 612c, and 612d of the rotor 61 and the tip portions of the 3 protrusions 221 of the second cam main body 22 on the inner wall surface of the pen case 2 (the tip side is closer to the position indicated by the broken line in fig. 3B) are in a state of abutting against each other.

As described above, as shown in fig. 1 (a), even in a state in which the rotary drive unit 52 is housed in the hollow portion 2a of the pen case 2 including the nib portion of the writing input cartridge 3, the rotary drive unit 52 is held in a state in which the knock portion 52KN thereof protrudes from the opening 2c on the rear end side of the pen case 2, and the held state is a state in which a predetermined pressing force against the elastic force of the coil spring 46 functioning as a damper for protecting the rubber function cartridge 4 is not applied to the knock portion 52KN by a positive pressure.

[ position detection device cooperating with the knock-type electronic pen 1 of the present embodiment ]

The configuration and operation of the position detection device cooperating with the knock-type electronic pen 1 according to the present embodiment will be described with reference to fig. 7.

As described above, the knock-type electronic pen 1 according to the present embodiment includes the writing input box 3 and the eraser function box 4 as the position indicating section. As shown in fig. 7, the writing input case 3 includes, as an electronic circuit configuration, a resonance circuit 3RC in which a coil 31, a capacitor 39, and a variable capacitor 71C constituted by a pen pressure detecting unit are connected in parallel, and the rubber function case 4 includes a resonance circuit 4RC in which a coil 41, a capacitor 49, and a variable capacitor 72C constituted by a pen pressure detecting unit are connected in parallel. In this case, the resonance frequency f1 of the resonance circuit 3RC and the resonance frequency f2 of the resonance circuit 4RC are different.

The position detection device is composed of a position detection sensor 100 and a position detection circuit 200. The position detection sensor 100 is configured such that an X-axis direction loop coil group 102X and a Y-axis direction loop coil group 103Y are formed on a sensor substrate 101.

The X-axis direction loop coil group 102X is formed of n (n is an integer of 2 or more) loop coils 102X arranged in the lateral direction of the sensor substrate 101 (for example, the X-axis direction of the position coordinates) ₁ ～102X _n The Y-axis direction loop coil group 103Y is configured by m (m is an integer of 2 or more) loop coils 103Y arranged in the longitudinal direction of the sensor substrate 101 (for example, the Y-axis direction of the position coordinates) ₁ ～103Y _m And (4) forming.

The position detection sensor 100 is connected to a position detection circuit 200. In the example of fig. 7, the position detection circuit 200 includes a selection circuit 201, an oscillator 202, a current driver 203, a transmission/reception switching circuit 204, a reception amplifier 205, a band-pass filter 206 having a frequency f1 as a pass center frequency, a band-pass filter 207 having a frequency f2 as a pass center frequency, a writing position detection circuit 208, an erasing position detection circuit 209, and a processing control unit 210.

The selection circuit 201 sequentially selects one of the X-axis direction loop coil group 102X and the Y-axis direction loop coil group 103Y, and transmits a signal to the writing input cartridge 3 or the rubber function cartridge 4 of the knock-type electronic pen 1 and receives a signal returned from the writing input cartridge 3 or the rubber function cartridge 4 by the selected loop coil.

The transmission/reception switching circuit 204 controlled by the processing control unit 210 is connected to the selection circuit 201. When the transmission/reception switching circuit 204 is connected to the transmission-side terminal T, an ac signal is supplied from the oscillator 202 to the selection circuit 201, and when connected to the reception-side terminal R, a signal from the selection circuit 201 is supplied to the

bandpass filters

206 and 207 through the reception amplifier 205.

The band-pass filter 206 extracts only the return signal from the resonance circuit 3RC of the writing input cartridge 3 and supplies the return signal to the writing position detection circuit 208. In addition, the band-pass filter 207 extracts only the return signal from the resonance circuit 4RC of the rubber function box 4 and supplies it to the erasing position detecting circuit 208.

The writing position detection circuit 208 and the erasing position detection circuit 209 detect a received signal, which is an induced voltage generated in the loop coil of the position detection sensor 1, convert the detected output signal into a digital signal, and output the digital signal to the processing control unit 210.

The processing control unit 210 calculates an X-coordinate value and a Y-coordinate value of the pointed position of the pen tip portion of the writing input cartridge 3 as writing input positions based on the digital signal from the writing position detection circuit 208, that is, the level of the voltage value of the induced voltage generated in each loop coil. The processing control unit 210 also calculates the X-coordinate value and the Y-coordinate value of the pointing position of the pen tip portion of the rubber function case 4 as the erasing position based on the digital signal from the erasing position detecting circuit 209, that is, the level of the voltage value of the induced voltage generated in each loop coil.

[ Effect of the knock-type electronic Pen of the embodiment ]

As described above, according to the knock-type electronic pen of the embodiment, even when the knock section 52KN is operated to knock and the pen tip of the writing input cartridge 3 is in a state of protruding from the opening 2b on the pen tip side of the pen casing 2 by the knock cam mechanism 5, the knock section 52KN is held in a state of protruding from the opening 2c on the rear end side of the pen casing 2 by the holding mechanism 6, and the held state is maintained as long as a predetermined pressing force against the elastic force of the coil spring 46 functioning to protect the damper of the eraser function cartridge 4 is not applied to the knock section 52KN.

Therefore, in order to correct the writing input, the user who has performed the writing input with the pen tip portion of the writing input cartridge 3 can replace the pen case 2 with the other one and bring the knock portion 52KN side protruding from the opening 2c close to the position detection sensor 100, thereby stabilizing the erasing instruction with the normal pen pressure.

In the present embodiment, even when the writing input cartridge 3 is accommodated in the hollow portion of the pen case 2 including the nib portion, the knock portion 52KN is held in a state of protruding from the opening 2c on the rear end side of the pen case 2, and the held state is maintained as long as a predetermined pressing force against the elastic force of the coil spring 46 functioning as a damper for protecting the eraser function cartridge 4 is not applied to the knock portion 52KN.

Therefore, even in a state where the pen tip portion of the writing input cartridge 3 does not protrude from the opening 2b on the pen tip side of the pen case 2, the user can bring the side of the knock portion 52KN protruding from the opening 2c on the rear end side of the pen case 2 close to the position detection sensor 100, and stabilize the erasing instruction with the normal pen pressure.

[ other embodiments and modifications ]

In the above-described embodiment, the first position indicating section and the second position indicating section are both configured as an electronic pen case, but such a case structure is not essential, and it is sufficient if the pen tip section can be made to protrude from the opening of the pen case and be housed in the hollow section of the pen case by pushing the cam mechanism.

In the above-described embodiment, the holding mechanism is configured to apply the knock cam mechanism, but any configuration may be used as long as the knock portion is held so as to always protrude from the opening on the rear end side of the pen case.

In the above-described embodiment, the first position indicating section is used for writing input, and the second position indicating section is used for erasing input information written by the first position indicating section. For example, the first position indicating portion may be constituted by a position indicating portion of a capacitance type, and the second position indicating portion may be constituted by a position indicating portion of an electromagnetic induction type for writing input of a different type. In this case, the knock section for receiving the nib portion of the second position indicating section can be detached from the rotary member driving section of the knock cam mechanism section, and the nib side of the second position indicating section is exposed to the outside and protrudes from the opening on the rear end side of the pen case.

Description of the reference symbols

1 \8230, a knock-type electronic pen 2 \8230, a pen case 3 \8230, an electronic pen case for writing and inputting 4 \8230, an electronic pen case for eraser function 5 \8230, a knock cam mechanism 6 \8230, a holding mechanism 21 \8230, a first cam body 22 \8230, a second cam body 51 \8230, a rotary member 52 \8230ofthe knock cam mechanism 5, a rotary member driving part of the knock cam mechanism 5, 52KN 8230, a knock part 53 8230, a return coil spring 61 8230of the knock cam mechanism 5, a rotary member 62 8230of a different knock cam mechanism constituting the holding mechanism 6, a return coil spring 521 8230of a different knock cam mechanism constituting the holding mechanism 6, a first part 522 8230of the rotary member driving part 51, and a second part 522 of the rotary member driving part 52.

Claims

1. A knock-type electronic pen is provided with:

a cylindrical housing;

the second position indicating section is housed in the knock cam mechanism section in a state where at least a core side of the tip end section is housed in a portion of the knock section which protrudes to the outside from an opening on the other end side of the housing,

the knock-type electronic pen includes a holding mechanism for, when at least the core of the first position indicator is caused to protrude from the opening on the one end side of the cylindrical casing by a knock operation of the knock section, returning the knock section pushed into the casing by the knock operation to a state protruding to the outside from the opening on the other end side in the axial direction of the cylindrical casing, and holding the knock section.

2. The knock-type electronic pen according to claim 1,

the holding mechanism holds the knock section in a state of protruding outward from an opening on the other end side in the axial direction of the cylindrical housing when a pressing force at the time of the knock operation on the knock section is equal to or less than a predetermined value, and releases the held state and starts an operation of the knock cam mechanism when the pressing force at the time of the knock operation on the knock section exceeds the predetermined value.

3. The knock-type electronic pen according to claim 1,

the holding mechanism is composed of a knock cam mechanism which is operated by a knock operation of the knock section and is different from the knock cam mechanism.

4. The knock-type electronic pen according to claim 2,

the holding mechanism holds the knock section of the knock cam mechanism in a state of protruding outward from an opening on the other end side in the axial direction of the tubular housing even in a state of accommodating the first position indicator including the tip end portion in the housing.

5. The knock-type electronic pen according to claim 1,

the pressing cam mechanism includes: a rotary member fitted to a rear end side of the first position indicating portion opposite to the front end portion; and a rotating member driving section which moves in the axial direction in response to a pressing operation of the pressing section and rotates the rotating member in response to the pressing operation,

the second position indicating portion is disposed in a hollow portion in the axial direction of the rotor driving portion,

the holding mechanism includes a biasing member that elastically biases the rotor driving unit toward the other end side in the axial direction of the housing at all times.

6. The knock-type electronic pen according to claim 5,

an elastic member; shock absorber

The second position indicating section is elastically urged by an elastic member toward the other end side in the axial center direction of the housing at all times in the hollow section of the rotor driving section.

7. The knock-type electronic pen according to claim 6,

the rotor driving unit includes a first portion and a second portion coupled to each other in the axial direction in a state of being movable in the axial direction against the urging force of the elastic member,

the hollow portion of the rotor driving portion is formed by a hollow portion that communicates the first portion and the second portion coupled in the axial direction,

wherein an end in the axial direction of the first portion opposite to a coupling side with the second portion is configured to engage with the rotary member to rotate the rotary member, and an end in the axial direction of the second portion opposite to the coupling side with the first portion is provided as the click portion protruding outward from an opening at the other end side in the axial direction of the housing,

when the pressing force at the time of the knock operation on the knock section is equal to or less than the elastic force of the elastic member, the holding mechanism section holds the knock section in a state of protruding outward from the opening on the other end side in the axial direction of the cylindrical housing, and when the pressing force at the time of the knock operation on the knock section exceeds the elastic force of the elastic member, the holding mechanism section releases the held state and starts the operation of the knock cam mechanism section.

8. The knock-type electronic pen according to claim 7,

the holding mechanism is composed of a knock cam mechanism which is operated by a knock operation of the knock section and is different from the knock cam mechanism,

the rotating member of the different knock cam mechanism is configured to be slidably disposed on an outer peripheral side of the first portion, engage with an end edge of the second portion on a coupling side with the first portion, receive a pressing force in an axial direction in response to the knock operation of the knock section of the second portion, and rotate,

when the pressing force for the pressing operation of the pressing portion is less than or equal to the elastic force of the elastic member, the rotating member of the different pressing cam mechanism portion holds the pressing portion, the movement of which in the axial direction is prevented, in a state of protruding outward from the opening at the other end side in the axial direction of the cylindrical housing,

when the pressing force applied to the knock section exceeds the elastic force of the elastic member, the rotating member of the different knock cam mechanism section rotates to release the prevention of the movement in the axial direction, and the operation of the knock cam mechanism section is started.

9. The knock-type electronic pen according to claim 8,

the urging member always elastically urges the rotary member driving section toward the other end side in the axial direction of the housing via the rotary member of the different knock cam mechanism section.

10. The knock-type electronic pen according to claim 8,

the rotating member of the different knock cam mechanism portion includes a plurality of first protrusions provided at predetermined intervals in a circumferential direction,

a plurality of second protrusions that engage with the plurality of first protrusions of the rotary element of the different knock cam mechanism are formed in a circumferential direction of an inner wall surface of the housing,

when the pressing force at the time of the knock operation of the knock section is equal to or less than the elastic force of the elastic member, the first protrusion of the rotary member of the different knock cam mechanism section abuts against the second protrusion of the inner wall surface of the housing to hold the knock section in a state of protruding outward from the opening on the other end side in the axial direction of the cylindrical housing,

when the pressing force applied to the knock section exceeds the elastic force of the elastic member, the rotating member of the different knock cam mechanism is rotated, the first protrusion of the rotating member of the different knock cam mechanism is not abutted against the second protrusion of the inner wall surface of the housing, and the holding state is released, and the rotating member driving section is moved together with the rotating member of the different knock cam mechanism toward the first opening side of the housing.

11. The knock-type electronic pen according to claim 10,

the urging member is provided between the second protrusion of the housing and the rotating element of the different knock cam mechanism.

12. The knock-type electronic pen according to claim 1,

the first position indicating portion and the second position indicating portion are configured as an electronic pen case.

13. The knock-type electronic pen according to claim 1,

the first position indicating portion and the second position indicating portion are electromagnetic induction type position indicating portions.

14. The knock-type electronic pen according to claim 12,

the first position indicating section and the second position indicating section are set to be different in any one of a frequency, a signal pattern, and a modulation scheme of a signal interacting with the position detection sensor.

15. The knock-type electronic pen according to claim 1,

an eraser or a dummy eraser is attached to a tip end portion of a portion of the knock portion which protrudes outward from an opening at the other end side in the axial direction of the cylindrical housing.

16. The knock-type electronic pen according to claim 1,

the first position indicating portion is a position indicating portion of a capacitance type, and the second position indicating portion is a position indicating portion of an electromagnetic induction type.